"""
下载文件-不使用多进程

Version: 0.1
Author: yuwl
Date：2024-4-9
"""

from random import randint
from time import time, sleep


def download_task(filename):
    print('开始下载%s...' % filename)
    time_to_download = randint(5, 10)
    sleep(time_to_download)
    print('%s下载完成！耗费了%d秒' % (filename, time_to_download))

def main():
    strat = time()
    download_task('Python入门')
    download_task('film.avi')
    end = time()
    print('总共耗费了%.2f秒.' % (end - strat))


if __name__ == '__main__':
    main()